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4. Maintenance
3160-A2-GB21-90 February 2001
4-17
Test Jacks
For 2-port and 4-port DSU/CSUs, six test jacks are located on the front panel
(Figure 4-1, Test Jacks (Standalone DSU/CSU)). The Mon (Monitor) branch of the
menu tree allows you to select either EQPT (Equipment) or NET (Network).
The 2-port and 4-port DSU/CSU test jack functions are shown in Figure 4-2, Test
Jack Block Diagram, and described in Table 4-7, Test Jack Functions.
Figure 4-1. Test Jacks (Standalone DSU/CSU)
Procedure
To change the Mon (Monitor) selection in 2-port and 4-port DSU/CSUs:
1. From the top-level menu, press the key until the Ctrl selection appears on
the screen.
2. Select Ctrl.
3. From the Control screen, press the key until the Mon selection appears on
the screen.
4. Select Mon.
5. From the Mon Jack screen, press F1 to select EQPT (the default), or press F2
to select NET.
In
Out
In
Out
In
Out
NET MON EQPT
496-14808
F1
F2
F3
Control:
Passwd Mon
F1
F2 F3
Mon Jack: EQPT
EQPT NET